Hey guys and gals, official first post haha. I've been a saltwater predator/reef guy for almost 14 years. I have a 135 sitting around and wanted to go fresh this time. I've had multiple piranhas before and currently. Id really love to dive in with armatus. I've read the sticky regarding their care but any info you guys have about possible tankmate species, specific filtration, substrate and things like that will be very much appreciated. Thanks guys!